Know Your Environment. Protect Your Health.

Dalapon

West Jefferson Waterworks District 2

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.90 ppb51ND - 5.90 ppb
20193.05 ppb42ND - 6.10 ppb
2020ND20ND
20211.33 ppb42ND - 3.10 ppb
20220.285 ppb21ND - 0.570 ppb
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 200 ppb

The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-3035371297004ND
2018-01-3035371297004ND
2018-06-015.90 ppb*
2018-10-0235421760001ND
2018-10-0235421760001ND
2019-02-0535446731001ND
2019-02-0535446731001ND
2019-08-14354904150016.10 ppb
2019-08-14354904150016.10 ppb
2020-03-1835538508001ND
2020-10-2635587646001ND
2021-01-2835608074001ND
2021-12-0835683670001ND
2021-12-09356833060012.20 ppb
2021-12-09356833220013.10 ppb
2022-01-1335690758001ND
2022-08-04357372480010.570 ppb
2023-02-0135777179001ND
2023-10-3135838752001ND

* Sample result is taken from the system's CCR report.